Mounted on Mavic Open 4 32 spokes Tubular rims laced to Campy Record Hubs. These wheels and tyres are installed in a 2004 Pegoretti Marcelo. Size runs smaller than clinchers so the 28ï¿½s fit in the Marcelo frame. Ride is otherworldly on the handmade Pegoretti steel bike. I weight 178 and inflate tyres 95 rear and 85 front with no problems. Tyres due to the latex tubes do not hold air so they must be inflated right before the ride. All in all these tyres provide the performance expected from high end road tubulars. Mounting is fairly easy if one is familiar to mounting and glueing tubulars. If not let your mechanic mount them.